[sllug-members]: DNS woes?

[Kevin Pendleton]

sllug-members-request at sllug.org wrote:
> Date: Mon, 21 Apr 2008 10:39:13 -0600
> From: "Tarrant Rollins" <tarrant.rollins at gmail.com>
> Subject: [sllug-members]: DNS woes?
> To: sllug-members at sllug.org
> Message-ID:
> 	<cf13176e0804210939m1767596ey8592dcd87caef557 at mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> So I had a question about something that has been annoying me for a while.
>
> I have two Linux computers a Slackware Desktop/Home Server and a Xubuntu
> Laptop. Both computers when trying to access web pages take a eternity and a
> half resolving domain names. I've found a Quick and Dirty fix which involves
> me editing /etc/resolv.conf and moving the local Belkin Router to the bottom
> of the list. The problem is that every time the computer goes off (or my
> laptop goes into suspension) the file gets remade and therefor needs to be
> reedited. Is their anyway to actually fix the problem on either the
> computers or on the Belkin wireless router?
>
> Thanks for any help you can provide!
> -Tarrant
Tarrant,

The reason that the resolv.conf file is being overwritten is that you 
have your NICs set to DHCP.  When your computer retrieves an IP address 
it also gets the DNS servers from the router's settings.  So there are 
multiple ways to "fix" the issue.  First, assign yourself a static 
internal IP address that will work behind your router, change the 
resolv.conf file and it will no longer be overridden.  Second, possibly 
change the order of the DNS servers on the router (may not be possible, 
but would be in the LAN setup).  Third, figure out why your router is 
such a lousy DNS caching server, perhaps a firmware update is available, 
maybe someone manually put in an IP address for a DNS server that no 
longer exists.  Fourth, set up DNS caching on your linux boxes and set 
the first IP address in /etc/resolv.conf to your localhost.....  The 
first answer would probably be the easiest. :)

Kevin